11. Don't Forget About Protecting Mobile Clients
Your Wi-Fi security concerns shouldn’t stop at your network. Users with smartphones, laptops, and tablets may be protected onsite, but what about when they connect to Wi-Fi hotspots or to their wireless router at home? You should try to ensure their other Wi-Fi connections are secure as well, to prevent intrusions and eavesdropping.
Unfortunately, it isn’t easy to ensure outside Wi-Fi connections are secure. It takes a combination of providing and recommending solutions and educating users on the Wi-Fi security risks and prevention measures.
First, all laptops and netbooks should have a personal firewall. Next, you need to make sure the user’s Internet traffic is encrypted from local eavesdroppers while on other networks by providing VPN access to your network. If you don't want to use in-house VPN for this, consider outsourced services such as Hotspot Shield or Witopia. For iOS (iPhone, iPad, and iPod Touch) and Android devices, you can use their native VPN client. However, for BlackBerry and Windows Phone 7 devices, you must have a messaging server setup and configured with the device in order to use their VPN client.
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